/Engine/Source/Editor/Sequencer/Public/SequencerChannelInterface.h
void GetKeyTimes(FMyChannelType* InChannel, TArrayViewInHandles, TArrayViewOutKeyTimes);
template<typename ChannelType> struct TSequencerChannelInterfaceCommon : public [ISequencerChannelInterface](API\Editor\Sequencer\ISequencerChannelInterface)